Cover for sealing opening of glass volumetric bottle

Abstract

The invention creates and provides a cover for sealing an opening of a glass volumetric bottle. The cover comprises a cover top (1), a cover wall (2) and fasteners (3) which are integrally connected, wherein the cover wall (2) is vertically connected with the cover top (1) to form a round-pipe shape; the fasteners (3) are angle-shaped bulges arranged on the bottom-part edge of an inner wall (21) of the cover wall (2); and grooves (4) are also arranged at the connection positions between the cover top (1) and the outer wall (22) of the cover wall (2). The cover provided by the invention has the advantages that various defects of the bottle cover of the existing glass volumetric bottle can be overcome, the simple and practical effects are achieved, the sealing performance is good and the cover can be universal to the same model of glass volumetric bottles.

Description

technical field [0001] The invention relates to a bottle cap, in particular to a cap that can be used for sealing the mouth of a glass volumetric bottle. Background technique [0002] Glass volumetric flask is a kind of glass container commonly used in chemical analysis process, and it is mostly used for constant volume of liquid. [0003] The volumetric flask needs to be sealed when it is used, and its sealing depends on the ground glass stopper. It is also necessary to apply vaseline on the ground mouth, which is easy to contaminate the solution in the bottle and the volumetric flask. Leakage. [0004] Most of the volumetric flasks produced by domestic manufacturers have the same outer diameter and different inner diameters of the volumetric flasks in different batches of the same model, so the corks are of different sizes and cannot be used universally. It is very inconvenient to use and clean. The common practice in the laboratory is to tie the purchased volumetric fla...

AI Technical Summary

Problems solved by technology

[0003] The volumetric flask needs to be sealed when it is used, and its sealing depends on the ground glass stopper. It is also necessary to apply vaseline on the ground mouth, which is easy to contaminate the solution in the bottle and the volumetric flask. Leakage

[0004] Most of the volumetric flasks produced by domestic manufacturers have the same outer diameter and different inner diameters of the volumetric flasks in different batches of the same model, so the corks are of different sizes and cannot be used universally. It is very inconvenient to use and clean. The common practice in the laboratory is to tie the purchased volumetric flask body and cork together with a rope to avoid confusion, but the volumetric flask is often damaged during cleaning.

[0005] In addition, the glass volumetric cork is mostly cylindrical with a thick top and a thin bottom. The top is usually connected with a round pie-shaped glass piece perpendicular to the top plane for easy access, which makes it very inconvenient to remove and place the cork. It is easy to pollute the cork, and it is easy to roll off and break

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